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trillion

trillion

9.9
In old British use, a number equal to one million million million, written 1,000,000,000,000,000,000
  • noun
  • /ˈtrɪljən/
  • Archaic
translation icon : trillón
  • The new initiative aims to reduce carbon emissions by trillions of tons over the next few decades.

Examples

  • Scientists predict that the universe will be around for many more trillions of years before it eventually cools down completely.

  • Dodd himself came up with, in a burst of mystical inspiration, a method not unlike hypnosis that connects individuals to their past lives, who they were even trillions of years ago (as Dodd adds with relish, "yes, with a T!").

    Blog text (22)
  • The estimated cost of the project is around trillion dollars, making it the largest investment in history.

Synonyms

quintillion
vstrillion
1 8.4

A number equal to one followed by 18 zeros

is the older British term for the same number

Compounds

A measure of computer speed equal to one trillion math calculations every second

Surface Forms

trillion singular
trillions plural

Etymology

Trillion comes from tri- 'three' plus -illion like million, but in older British use each new name was much bigger, so a trillion once meant a million million million (1 followed by 18 zeros), which is different from the modern 1,000,000,000,000.